4 inch spring tower bolt

4-Inch Tower Bolt

A tower bolt is a simple yet highly effective piece of ironmongery designed to provide peace of mind. Whether you need to secure a garden gate, reinforce a shed door, or fasten a pair of French windows, the 4-inch tower bolt is the ideal solution. This versatile and robust piece of hardware is designed for straightforward installation and long-lasting performance. It is a staple for both DIY enthusiasts and professional tradespeople. The 4-inch tower bolt provides an extra layer of security around the home and garden, making it more difficult for unauthorised external entry.

Straightforward Function, Robust Security

The classic design of a 4-inch tower bolt consists of a steel bolt that slides through two mounting plates. The back plate is fixed to the door or gate. The staple keep is fixed to the frame. By simply sliding the 4-inch tower bolt into the keep, you can securely fasten your door from the inside. This creates a physical barrier that withstands force and the elements.

Built to Last from Quality Materials

This 4-inch tower bolt is manufactured from heavy-duty carbon steel. This material is chosen for its inherent strength and durability. To ensure the 4-inch tower bolt stands up to the rigors of outdoor use, it is finished with a protective coating. Several finish options are available to suit your specific needs and aesthetic preferences.

4 inch spring tower bolt

A galvanised finish on a 4-inch tower bolt offers excellent corrosion resistance. This makes it perfect for exterior gates, sheds, and outhouses exposed to the elements. Some galvanised 4-inch tower bolt options are rated for urban and industrial areas with a moderate salt atmosphere.

A zinc-plated finish on a 4-inch tower bolt provides a durable, corrosion-resistant silver-coloured finish. This is suitable for a variety of applications. A powder-coated or painted finish on a 4-inch tower bolt gives a clean, subtle appearance. This black finish is ideal for matching black ironmongery on doors and gates.

Key Dimensions and Installation

Designed for ease of use, this 4-inch tower bolt comes with all the necessary fixings. This ensures a quick and secure installation. Here are the critical specifications to ensure the 4-inch tower bolt fits your project.

The bolt length of this 4-inch tower bolt is 4 inches. The bolt diameter is typically 10mm. The plate size for a 4-inch tower bolt generally measures 118mm in length and 38mm in width.

The bolt throw is the distance the bolt travels into the keep. For a straight 4 inch spring tower bolt this is 25mm. For necked versions of the 4 inch spring tower boltthe bolt throw is 40mm. This 4-inch tower bolt is supplied with 8 pan screws, providing everything you need for a secure fit.

Straight vs. Necked Tower Bolts

When selecting your bolt, you will encounter two main types. Straight bolts are designed for flush-fitting applications. The bolt is aligned with the back plate. This makes a straight4 inch spring tower bolt ideal for the edge of a door or gate.

Necked, or cranked, tower bolts feature a necked design. The bolt is set back from the plate. This allows a necked 4-inch tower bolt to reach a staple keep that is set further back. This is common on recessed doors or double gates where the bolt needs to reach into the frame.

Frequently Asked Questions

Is this 4-inch tower bolt suitable for outdoor use?

Yes, provided you select the correct finish. For outdoor applications like garden gates and sheds, choose the galvanised or a high-quality zinc-plated version of the 4-inch tower bolt. These finishes offer superior rust and corrosion resistance. The standard black finish on a4 inch spring tower boltis more suited for internal or sheltered areas. It may rust if exposed to persistent rain.

What is the difference between a tower bolt and a barrel bolt?

In modern usage, the terms are often interchangeable. A traditional tower bolt usually refers to a larger, more robust bolt for heavy-duty applications like gates. A barrel bolt might be used for lighter internal doors. However, this 4 inch spring tower bolt is suitable for a wide range of duties, from sheds and domestic doors to livestock pens.

Does this 4-inch tower bolt come with screws?

Yes, this 4-inch tower bolt typically includes all the necessary fixings. The pack usually contains 8 pan screws to mount both the back plate and the staple keep.

Can I use this 4-inch tower bolt to secure a shed or garage?

Absolutely. The robust carbon steel construction of this 4 inch spring tower boltprovides excellent security for sheds, garages, and other outbuildings. It gives you confidence that your belongings are safe.

How easy is it to install this 4-inch tower bolt?

Installation of a 4 inch spring tower bolt is very straightforward. Simply position the bolt on the door and the keep on the frame. Mark your screw holes. Then screw the plates into place using the supplied fixings. Installing a 4 inch spring tower bolt is a quick job that makes a big difference to your security.

4 inch spring tower bolt available in Mombasa, Kwale, Kilifi, Lamu, Mandera, Marsabit, Isiolo, Meru, Embu, Kitui, Machakos, Makueni, Nyandarua,

Nyeri, Kirinyaga, Murang’a, Kiambu, Turkana, Samburu, Trans Nzoia, Uasin, Gishu, Elgeyo Marakwet, Nandi, Baringo,

Laikipia, Nakuru, Narok, Kajiado, Kericho, Bomet, Kakamega, Vihiga, Bungoma, Busia, Siaya, Kisumu, Homa Bay, Migori, Kisii, Nyamira, Nairobi.

In Nairobi you can find them at: Westlands, Dagoretti,  Lang’ata, Starehe, Kamukunji, Embakasi, and Kasarani, Kibera, Mathare,

Eastleigh, Karen, Lavington, Westlands, Parklands, Runda, South C, South, Ngong Road

In Mombasa you can find us at : Nyali, Mwembe Tayari, Majengo, Likoni ,Bamburi, Miritini